docs: def sincpt(method, target, et, fixref, abcorr, obsrvr, dref, dvec):
      """
      Given an observer and a direction vector defining a ray, compute
      the surface intercept of the ray on a target body at a specified
      epoch, optionally corrected for light time and stellar
      aberration.
  
      This routine supersedes :func:`srfxpt`.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/sincpt_c.html
  
      :param method: Computation method.
      :type method: str
      :param target: Name of target body.
      :type target: str
      :param et: Epoch in ephemeris seconds past J2000 TDB.
      :type et: float
      :param fixref: Body-fixed, body-centered target body frame.
      :type fixref: str
      :param abcorr: Aberration correction.
      :type abcorr: str
      :param obsrvr: Name of observing body.
      :type obsrvr: str
      :param dref: Reference frame of ray's direction vector.
      :type dref: str
      :param dvec: Ray's direction vector.
      :type dvec: 3-Element Array of floats
      :return:
              Surface intercept point on the target body,
              Intercept epoch,
              Vector from observer to intercept point.
      :rtype: tuple
      """
      method = stypes.stringToCharP(method)
      target = stypes.stringToCharP(target)
      et = ctypes.c_double(et)
      fixref = stypes.stringToCharP(fixref)
      abcorr = stypes.stringToCharP(abcorr)
      obsrvr = stypes.stringToCharP(obsrvr)
      dref = stypes.stringToCharP(dref)
      dvec = stypes.toDoubleVector(dvec)
      spoint = stypes.emptyDoubleVector(3)
      trgepc = ctypes.c_double(0)
      srfvec = stypes.emptyDoubleVector(3)
      found = ctypes.c_int(0)
      libspice.sincpt_c(method, target, et, fixref, abcorr, obsrvr, dref, dvec,
                        spoint, ctypes.byref(trgepc), srfvec, ctypes.byref(found))
      return stypes.cVectorToPython(spoint), trgepc.value, stypes.cVectorToPython(
              srfvec), bool(found.value)